Note most 747 Classics were never equipped with FMS, the notable exception being the British Airways' fleet, which later ended up in Air Atlanta Icelandic. For the vast majority of 747 classics the most advanced gear they got before retirement was the Litton LTN-92 INS.

As for the CLS model, I hope they seriously improve the look of the gauges because they currently look like they were made from MS paint. ;D Also they need to make the round analog engine gauges because that's what the majority of 747 classics have, rather than the KSSU/TWA style tape gauges.  ;)

Honeywell FMS in action. Source:http://www.billzilla.org/aviationpage4.html

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